Eduard krull



(No Model.)

B. KRULL. INHALING APPARATUS.

No. 401,502. Patented Apr. 16, 1889.

A forming. the bottom of the open vessel G. Between the vessel G and the opening S of the air-channel Q there is fixed concentrically with the vessel G a sheet-iron shield, K, which is bent in the form of a segment of a circle.

Fig. 3 is a plan of Fig. 2. n n are two handles fixed on the casing for carrying the apparatus. C, Fig. 3, shows the crescent-shaped form of the vessel 0, Fig. 1.

The main object of the apparatus may be described as follows: The apparatus is de signed to warm atmospheric air with its temperature undergoing the different changes when passing through the apparatus for the purpose of inhalation. The air is so warmed and saturated with humidity as always to keep when issuing from the apparatus the same temperature and humidity as may be desired. This result is obtained in the first place by producing the requisite heat by means of the water-heating apparatus A B C D.

The construction of the water-heating apparatus is such as to prevent an y danger to the patient when using. In case the heat should get too intense the boiling water will flow out of the serpentine pipe or tube B into the vessel C, while through the pipe D there is always carried a certain quantity of water out of the vessel 0 into the kettle or boiler A. The vessel 0 is designed to act (owing to its extended surface) as a cooler for the hot water that may pass over into cap N.

The necessary augmentation of the humidity or moisture of the air is obtained by the evaporation of the water from the open vessel G.

When using the apparatus, the water in the vessel G is heated to about 60 centigrade, and at this temperature about one hundred to one hundred and fifty grams of water are evaporated every hour, this being more than amply sufficient to completely saturate the air passing through theapparatus.

In order to prevent the air in passing through the opening S impinging directly against the sides of the vessel G, and thus cooling down the water in vessel G, a protecting-shield, K, is interposed between them.

By the construction of the apparatus previouslydescribed and the exact regulation of the heating medium the necessary constant equal temperature of the air is obtained from the outlet used for inhaling. To obtain such a constant equal temperature or a constant temperature that does not vary more than one degree, care must always be ob served as regards the degree of temperature of. the air that is entering the apparatus. The number of flames or burners used for heating the apparatus is under certain con ditions always the same. v

The regulation of the temperature of the apparatus is obtained by raising or lowering the heating apparatus. The thick coating of silicious sinter (or other suitable non-conductor of heat) prevents the heat passing out through the outer casing.

The action or working of the apparatus is as follows: After having closed the cock E, water poured into the vessel 0 fills up the warm-water-heating system A B C D, so that the water in C does not touch or obstruct the outlet of the serpentine pipe B. The stopcock J on the pipe H, connected with the vessel G, (which is thus emptied,) is then closed and one-half a pint of water is then poured through the funnel T into the vessel G. The lamp is then lighted with its two burners (the one having fifteen, the other one ten, flames, or other suitable numbers) and raised as high as possible, which can be done by raising the adjusting deviceuntil the stop f, around the rod Y at WV, touches the lower part of the adjusting device. Now, supposing that the patient requires air for inhaling of 42 or 43 centigrade, which is the temperature made use of in most cases, then only let the heating of the air in the apparatus go on until the thermometer p, in the tube 0 shows 31 centigrade, then put out the burner with fifteen flames and have the other ten flames burning alone. This being done, the temperature of the room is allowed for supposing it to be 17-3,; centigrade. Then as soon as the thermometer shows 40 Centigrade lower the lamp five centimeters by turning the screw nut k.

When the thermometer has got to 41 centi-.

grade, the patient will have to sit down and inhale full drafts of the warm air through the mouth by means of the mouth-piece P. When exhaling, the patient will have to close his mouth and exhale through the nose. To get used to the inhalation through the mouth and the exhalation through the nose, it is advisable to first close the nose while inhaling by pressing the nostrils together with the fingers. In about ten minutes the centigrade will be up to 42 c'entigrade, and then the temperature may be regulated with perfect ease between 42 and 43 by means of the regulating device. If the rising of the heat over 42 centigrade be too rapid,

- as may happen when the patient has not got much practice or is very weak and consuming a very little air' only, then it will be necessary to lower the lamp one or two centimeters after having inhaled for about half an hour. This can be done without the patient moving from the seat or ceasing the respiration by simply turning the nut 70. If, on the contrary, by a profound respiration and a considerable consumption of air, the temperature has risen a little only over 42 centigrade, the patient will have to raise the lamp one or two centimeters in the manner previously described.

The following index shows the method of proceeding at different temperatures-of the room, in order to obtain air for inhalation at a constant temperature of 42 or 43 centiwater, and evaporating-Vessel G, of the sergrade: pentine pipe B, the cold-Water reservoir 0, Supposing the heat andthecentigrade the heating appaand the p p D: Substantlany as forth: of the room to beat p to have risen ratuswithits fifgeen 2, In a, portable apparatus for inhahng 3o 5 I fifigfiiir damp or warm air of certain and unvarying Raumw, centimeters, temperature, the c0mbinati0n,with the water- 14 and 15 40 evaporating vessel G and boiler A, of the ser- 16 40 6 pentine pipe B, cold-water reservoir 0, and pipe D, and the lamp-regulating device con- 3 5 $0 23} g sisting of the guided rod Y, provided with a 8 screw-thread, 'u, arm as, and fixed stop f, sub- 3 stantially as described.

3. In a portable apparatus for inhaling damp or Warm air of acertain and unvarying 4o 5 a a 11 temperature, the combination, with the ser- 26 38 12 pentine pipe 13, cold-water reservoir 0, and

pipe D, of the ring Q, having opening S, and Thus, for obtaining the temperature of 42 provided with pipe R, for introducing cold or 43, it is necessary to proceed accordingly air into the inhaling apparatus, substantially 45 when any other temperature is required. as described.

What I claim and desire to secure by Let- In witness whereof I have-hereunto set my ters Patent of the United States, is hand in presence of two witnesses.

1. In a portable apparatus for inhaling EDUARD KRULL. damp or warm moist air of a certain and un- Witnesses: varying temperature, the combination, with OSCAR KRUJENBERG,

the water-containing boiler A, for heating the ERWIN G. BURNS. 

